Elevator car control



Nov. 10, 1936. H. R. CULLMER ELEVATOR CAR CONTROL Filed Nov. 13, 1935 3 Sheets-Sheet 1 ENTOR and ATTORNEY.

3 Sheets-Sheet 2 H. R. CULLMER Filed Nov. 15, 1935 ELEVATOR CAR CONTROL Nov. 10, 1936 I IN ENTOR.

ATTORNEY.

NOV. 10, 1936. CULLMER 2,060,283

ELEVATOR CAR CONTROL Filed Nov. 15, 1935 s Sheets-Sheet s *V'NT ATTORNEY.

Patented Nov. 10, 1936 8 UNITED STATES PATENT OFFICE nmva'ron. can CONTROL Harry R. Cullmer, Hollis, N. Y.

Application November 13, 1935, Serial No. 49,507 20 claims. (01.18'1-31) My invention relates to improvements in elevator hatch-way door locks and mechanism for the control and operation of.elevator cabs or cars, andis for the most part a continuation of my former'application, S. N. 396,964 (now Patent Number 1,945,734), and my copending patent applications serially numbered 557,016 and 743,888.

Referring to the accompanying drawings, Fig.

' 1 illustrates a vertical longitudinal view of a suitable form of lock embodying an application of my invention with the cover removed. Fig. 2 is a view looking from left to right thereat, parts being broken away and parts in section. Fig. 3 is a cross section on the line 3-3 of Fig. 1. Fig. 4

is a similar view to Fig. 1, illustrating modiflca- Fig. 5 is a perspective view of part of the tions.

switches shown in Figs. 4 and 7, and Fig. 6 is a similar view. of another part thereof. Fig. 7 is a view looking from left to right on Fig. 4. Fig. 8 is a detail in perspective showing part of the door, frame and lock, parts being broken away and parts in section, and Fig. 9 shows the same in horizontal cross section.- Fig. 10 is a view in front elevation, parts being in section and parts broken away, illustrating modifications in the door, frame and lock mechanism, and Fig. 11 is an enlarged detail of one of the lockin bolts. I3 indicates the box or casing of the lock 8 which may be partitioned with insulating material such as fibre or bakelite l4, l5, the same being adapted to support parts of'the electrical switches as hereinafter described, and being slidably removable from the grooves l6. Preferably within the lower part of the box is rotatably mounted the shaft ll, to which is secured the L-shaped member comprising the bolt l3 and arm I9, the former to engage and lock the door beyond the case of the lock, and the latter to pivotally carry the short circuiting bridge 20, shown to advantage in Fig. 5, for closing the main line circuit at the terminals 2|, 22, and a bifurcated lug 23 is also preferably formed at the heel of the L-shaped member to engage the pin 24 upon the shaft 25, carrying the operating lever 25, which is provided with a roller 21, which is in the path of the retiring cam on the elevator car.

23 indicates a substantially flat Z-shaped insulating member or separator between the terminals 2|, 22, and is suitably secured to the partition IS with which it is removable with said terminals secured thereto by the binding posts 2|, 22'. .The top of the arm|9 terminates in sion spring 34 normally projecting the plun a flat table-like support 35, which carries a plate of insulation such,as mica 29, and upon this plate of mica are secured blocks of fibre 30, 3|, having opposed rectangular channels to receive the square tube 32, within which is slidably. .5 mounted the square plunger 33, the col,I1I i.'es-'* 33 leftwardly through the tube 32, 'lookin Fig. 1, the screws 42 passing through-the'insu lating members clear of the tube 32 into-the 10 table support 35, and 36 indicates another compression spring mounted over the stud 31, projecting from the base 33 at one end of the spring, the other end of said spring being over the stud 39 extending from beneath the table 15 35. 4|! indicates a boss which may be cast upon the outside of the box around the hole 4| to prevent the insertion of a narrow strip or wire between the end of the door and lock to lift the bolt I8. '20' Referring now to the upper part of the box,

shown in plan view in Fig. 3, it will be observed that a pair of contact bearings 43, 44 are secured to and removable with the partition l4, the binding posts 45, 45 being in the push but- 25 ton circuit. Upon the bearings are pivotally mounted the movable contacts 41, 48, the same being normally projected as shown in Fig. 3 by the compression springs 49, 50, in the path of movement of the door contacts 5|, 52, which 30 comprise round headed pins with reduced shanks which pass through the insulation tubes 5|, 52', into the metal bridge or plate 53, having insulated plates 54, 55, thereby insulating the door contacts from the housing 55, said housing hav- 35 ing a leg 51 extending at right. angles thereto, and being secured-to the end of the door preferably as shown, holes 58, 53 being provided through the door frame which register with holes 60, 6| through the box or casing l3 to allow for 40 the passage of the door contacts 5|, 52 to the movable contacts 41, 48 within the lock, the door framing 54 being widened or extended as shown at 52 to allow for the projection of the housing 55 beyond the end of the door and over the face of the framing on the hall and corridor side of the hatch-way, and in order to bring the lock in position for the door contacts, the same. is preferably secured within the door frame as shown preferably by supporting brackets such Referring now to Figs. 4 to '7 inclusive, theL- shaped member comprising bolt l8, arm I 9 and where the bolt I8 is shown with a hook end 65 in dotted outline thereby adapting the swing door look there shown as applicable for a sliding door. In the upper part of the lock shown in Figs. 4 and 7, the door contacts and associated parts shown in Figs. 1, 2, and 3 are omitted, and a pivoted member 88 is provided so that no contacts are required on the door, and the push button circuit is controlled and operated by parts entirely within the lock. For this purpose the member 66 is pivotally mounted at 81, and is provided with side bevels 88, 89 to accommodate either right or left swinging doors, and is provided with a nose 10 to accommodate a sliding door. Whatever door is used, it swings the member 66 into the look when the door closes, and the member 66 returns to the position shown as the door is opened. Upon the heel of the member 66 are spring projected slidable plungers 38 and bridge member 20 as previously described in connection with Figs. 1 and 2. Upon the insulation partition 1| are secured terminals 12, 13 of the push-button circuit, separated by the L- shaped insulating piece 14 also secured to the partition H, the movable bridge 20 closing the push button circuit when the door is closed. 15 indicates an opening through the wall of the box for the lead wires, and IS an opening for the nose of the contact member 68. I

Referring now to Figs. 10 and 11, it will be observed that the lock in the door frame is the same as shown in Figs. 4 and 7, except that the member 68 is not provided with the double beveled nose, and when the door is opened the nose of member 66 fills the opening 18 flush with the outside of the lock case. The member 11, pivotally mounted at 18 in the door frame is pro vided with the double beveled nosing to accommodate right or left swinging doors and sliding doors, and the nosing is somewhat longer so as to operate in advance of the actual closing of the door, so that the handle of the door can be operated when the door is closed and the car is at the floor. The rod 18 is pivotally mounted upon the member I! as shown, and may pass through the bracket I9 beneath which may be provided with the compression spring 80, resting upon the extension bolt 8|, pivotally connected to the rod I8, the lower end of the extension bolt 8| being preferably beveled, and passes through the lock case l3 and insulation partition II as shown. The bolt 8| resting behind the lug 82 of the member 86, prevents closing the push button circuit while the door is open, but when the door is closed, it strikes the member 11 raising the rods 18, 8|, and clears the lug 82 on member 66 which is now in the path of thebolt 83 of the door lock 93. This bolt is slidably mounted in the bearings 84, 85, and is cut away at 86 to house the ball end 81 of the lever 88, mounted upon the handle spindle of the door, the lower end of the lever 88 being similarly housed in the bolt 89, slidably mounted in bearings 88, 8|, and the bolt 83 is also preferably spring projected as shown at 92, so that when the door is closed and the handle is turned clockwise looking at Fig. 10, the push button circuit is closed due to the withdrawal of the rod 8| and the projection of the bolt 83, while at the same time the bolt 89 is withdrawn and allows the bolt |8 to drop down and lock the door beyond the door frame. Also the end enga ement of the bolts 88 and I8 when the door is closed, prevents the turning of the door knob while the car is away from the landing. The face plate 88' of the door lock 88 is also preferably depressed as indicated at 88, to clear the enlargement or boss 40 of the frame lock l3. When a swing door is used the ends of the bolts l8 and 89 are preferably oppositely beveled as shown, but when a slide door is used and the hook form of bolt is required, then the end of the bolt 89 is preferably fiat or straightened.

Of course it will be understood that various modifications may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

I claim:

1. In an elevator hatch-way door and frame combination having a hinged elevator hatch-way door and a frame therefor, a lock operatively associated therewith having door engaging means, said lock extending rearwardly of the face of and within said frame and substantially clear of the door opening, electrical switches in the upper and lower portions of said lock, means in combination with one of said switches for operating said door engaging means, means externally of said lock and in the path of movement of an elevator car for actuating said first mentioned means, said door-frame having an opening therethrough leading to said lock, said last mentioned means extending beyond said door and adapted to pass through said opening into said lock, means in combination with said door and permanently projecting therefrom for operating the other of said switches simultaneously with the operation of said door.

2. In an elevator hatch-way door and frame combination having a hinged elevator hatch-way door and a frame therefor, a lock operatively associated therewith, said lock extending rearwardly of the face of and within said frame and clear of the door opening thereof, electrical switches in said lock, means in combination with one of said switches for locking said door, means externally of said lock in the path of movement of an elevator car for actuating said first mentioned means, said door-frame having an opening therethrough leading to said lock, said last mentioned means extending beyond said door and adapted to pass through said opening into said lock, means in combination with said door and permanently projecting therefrom for operating the other of said switches simultaneously with the operation of said door.

3. In an elevator hatch-way door and frame combination having a hinged elevator hatch-way door and a frame therefor, a lock operatively associated therewith, said lock extending rearwardly of the face of and within said frame and substantially clear of the door opening thereof, electrical switches in said lock, means in combination with one of said switches for locking said door, means externally of said lock in the path of movement of an elevator car for actuating said first mentioned means, said door-frame having an opening therethrough leading to said lock, said last mentioned means extending beyond said doorand adapted to pass through said opening into said lock, means in combination with said door permanently projecting therefrom for operating the other of said switches simultaneously with the operation of said door, said first mentioned means being entirely within said lockwhen said door is opened.

4. In an elevator hatch-way door and frame combination having an elevator hatch-way door and a frame therefor, a lock operatively associated therewith, said lock extending rearwardly of the face of and within said frame and sub- 75 tion with said door for operating the other of stantially clear of the door opening thereof, electrical switches in said lock, means in combination with one of said switches for locking said door, means externally of said lockin the path of movement of an elevator car for actuating said first mentioned means, and means in combinasaid switches simultaneously with the operation of said door, said last mentioned means comprising an angle plate having one leg thereof parallel with the face and extending beyond the end of said door, and having short circuiting means projecting therefrom adapted to pass through said frame and the casing of said lock.

5. In an elevator hatch-way door and frame combination having a hinged elevator hatch-way door and a frame therefor, a lock operatively associated therewith, said lock extending rearwardly of the face of and within said frame and substantially clear of the door opening thereof, electrical switches in said lock, means in combination with one of said switches for locking said door, means externally of said lock in the path of movement of an elevator car for actuating said first mentioned means, said door-frame having an opening therethrough leading to said lock,

said last mentioned means extending beyond said door and adapted to pass through said opening into said lock, means in combination with said door for operating the other of said switches simultanec;isly with the operation of said door,

8. in an elevator hatch-way door and frame combination having a hinged elevator hatch-way door and a frame therefor, a lock operatively associated therewith, said lock extending rearwardly of the face of and within said frame and substantially clear of the door opening thereof, electrical switches in said lock, means in combination with one of said switches for locking said door, means externally of said lock in the path of movement of an elevator car for actuating said first mentioned means, said door-frame having an opening therethrough leading to said lock, said last mentioned means extending beyond said door and adapted to pass through said opening into said lock, means in combination with said door for operating the other of said switches simultaneously with the operation of said door, said switches having interchangeable parts.

2?. in an elevator hatch-way door and frame combination havingan elevator hatch-way door and a frame therefor, a lock operatively associated therewith, said lock extending rearwardly of. the face of and within said frame and substantially clear of the door opening thereof, electrical switches in said lock, means in combination with one of said switches for locking said door, means externally of said lock in the path of movement of an elevator car for actuating'said first men tioned means, means in combination with said door for operating the other of said switches simultaneously with the operation of said door, and transverse insulation partitions removably mounted in said lock with parts of said switches.

ii. In an elevator hatch-way door and frame combination having an elevator hatch-way door ands. frame therefor, a lock operatively associated therewith, said lock extending rearwardly of the face of and within said frame and substantially clear of the door opening thereof, electrical switches in said lock, means in combination with one of said switches for locking said door, means externally of said lock in,the path of movement of an elevator car for actuating said first mentioned means, means in combination with said door for operating the other of said switches simultaneously with the operation of said door, and means externally of-said lock and in combination with said door for locking one of said switches.

9. In an elevator hatch-way door and frame combination having an elevator'hatch way door and a frame therefor, a lock operatively associated therewith, said lock extending rearwardly of the face of and within said frame and substantially clear of the door opening thereof, electrical switches in said lock, means in combinain combination with said door for locking both of said switches.

10. In an elevator hatch-way door and frame combination having an elevator hatch-way door and a frame therefor, a lock operatively associated therewith, said lock extending rearwardly of the face of and within said frame and substantially clear of the door opening thereof, electrical switches in said lock, means in combination with one of said switches for looking said door, means externally of said lock in the path of movement of an elevator car for actuating said first mentioned means, means in combination withsaid door for operating the other of said switches simultaneously with the operation of said door, and means externally of said lock and in combination with said door for locking both of said switches, and for additionally looking said door, and for locking said first mentioned door locking means. 7

11. In an elevator hatch-way door and frame combination having an elevator hatch-way door and a frame therefor, a lock operatively associated therewith, said lock extending rearwardly of the face of and within said frame and substantially clear of the door opening thereof, electrical switches in said lock, means in combination with one of said switches for locking said door, means externally of said lock in the path of movement of an elevator car for actuating said first mentioned means, means in combination with said door for operating the other, of said switches simultaneously with the operation of said door, and means externally of said lock and in combination with said door for locking both of said switches, and for additionally locking said door, and for locking said first mentioned door locking means, and the handle of said door.

1-2. In an elevator hatch-waydoor and frame combination having an elevator hatch-way door and a frame therefor, a lock operatively associated therewith, said lock extending rearwardly of the face of and within said frame and substantially clear of the door opening thereof, electrical switches in said lock, means in comblnation with one of said switches for locking said door, means externally of said lock in the path of movement of an elevator car for actuating said first mentioned means, and means in combination with said door for operating the other of saidswitches simultaneously with the operation of said door, said door locking means adapted forinterchangeable swing and slide door engaging means.

13. In an elevator hatch-way door and frame combination having an elevator hatch-way door and a frame therefor, a lock operatively associated therewith, said lock extending rearwardly of the face of and within said frame and substantially clear of the door opening thereof, electrical switches in said lock, means in combination with one of said switches for locking said door, means externally of said lock in the path of movement of an elevator car for actuating said first mentioned means, means in combination with said door for operating the other of said switches simultaneously with the operation of said door, and means externally of said lock and in combination with said door for locking one of said switches, and for releasing said switch in advance of the complete closing of said door.

14. In an elevator door locking mechanism, means within the door frame and in combination with the handle of the door for closing an electric circuit and clearing the bolt of said lock to engage said door when said handle is turned in one direction, and for breaking said circuit and preventing said bolt from engaging said door when turned in the reverse direction, and means for obstructing access to the interior of said locking mechanism within said door frame when said door is open.

15. In an elevator door locking mechanism, means within the door frame and in combination with the handle of the door for closing an electric circuit and clearing the bolt of said lock to engage said door when said handle is turned in one direction, and for breaking said circuit and preventing said bolt from engaging said door when turned in the reverse direction, and means for obstructing access to the interior of said locking mechanism within said door frame when said door is open.

16. In an elevator door locking mechanism, means within the door frame and in combination with the handle of the door for closing an electric circuit and clearing the bolt of said loci: to engage said door when said handle is turned in one direction, and for breaking said circuit and preventing said bolt from engaging said door when turned in the reverse direction, said lock having bolt receiving'means adapted for receiving interchangeably, bolts for cooperating with pivoted and sliding doors.

1?. In an elevator hatch-way door and frame combination having an elevator hatch-way door and a frame therefor, a lock operatively associated therewith, said lock extending rearwardly of the face of and within said frame and Substantially clear of the door opening thereof, electrical switches in said lock, means in combination with one of said switches for locking said door, means externally of said lock in the path of movement of the elevator car for actuating said first mentioned means, means in combination with said door for operating the other of said switches simultaneously with the operation of said door, said last mentioned means comprising an angle plate having one leg thereof parallel with the face and extending beyond the end of said door, and having short circuiting means ing said door, means externally of said lock inthe path of movement of an elevator car for actuating said first mentioned means, said doorframe having an opening therethrough leading to said lock, said last mentioned means extending beyond said door and adapted to pass through said opening into said lock, means in combination with said door and permanently projecting therefrom for operating the other of said switches simultaneously with the operation of said door, the front and back of said lock substantially in alignment with the front and back of said door.

19. In an elevator hatch-way door and frame combination having a hinged elevator hatchway door and a frame therefor, a lock operatively associated therewith, said lock extending rear.

wardly of the face of and within said frame and substantially clear of the door opening thereof, electrical switches in said lock, means in combination with one of said switches for locking said door, means externally of said lock in the path of movement of an elevator car for actuating said first mentioned means, said door-frame having an opening therethrough leading to said lock, said last mentioned means extending beyond said door and adapted to pass through said opening into said lock, means in combination with said door permanently projecting therefrom for operating the other of said switches simultaneously with the operation of said door, and said door locking means entirely within said look when said door is opened.

20. In an elevator hatch-way door and frame combination having a hinged elevator hatch-way door and a frame therefor, a lock operatively associated therewith, said lock extending rearwardlyof the face of and within said frame and substantially clear of the door opening thereof, electrical switches in said lock, means in combination with one of said switches for locking said door, means externally of said lock in the path of movement of an elevator car for actuating said first mentioned means, said door-frame having an opening therethrough leading to said lock, said last mentioned means extending beyond said door and adapted to pass through said opening into said lock, means in combination with said door and permanently projecting therefrom for operating the other of said switches simultaneously with the operation of said door, and said lock being also substantially clear of the elevator shaft.

HARRY R. CULIJVIER. 

